Fork of Vega-Lite API Template
This example visualizes automobile fuel efficiency using a scatter plot of miles per gallon versus horsepower, colored by origin and sized by weight. A slider interactively filters the data to a single weight value, which updates the displayed points. The visualization is built with the Vega-Lite API, leveraging d3.csv for data loading from the UCI Auto MPG dataset, and uses vega-tooltip for hover details. Rendering is handled through vega.